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Neporo4naja [7]
4 years ago
9

-4x + y = 4 2x + 2y =13

Mathematics
2 answers:
schepotkina [342]4 years ago
4 0

Answer: What exactly are you asking??

Step-by-step explanation:

alukav5142 [94]4 years ago
4 0

Problem 1 Answer: x = -1 + 0.25y

Show Work:

1) Solving

-4x + y = 4

2) Solving for variable 'x'.

3) Move all terms containing x to the left, all other terms to the right.

4) Add '-1y' to each side of the equation.

-4x + y + -1y = 4 + -1y

5) Combine like terms: y + -1y = 0

-4x + 0 = 4 + -1y

-4x = 4 + -1y

6) Divide each side by '-4'.

x = -1 + 0.25y

7) Simplifying

x = -1 + 0.25y

Problem 2 Answer: x = 6.5 + -1y

Show Work:

1) Solving

2x + 2y = 13

2) Solving for variable 'x'.

3) Move all terms containing x to the left, all other terms to the right.

4) Add '-2y' to each side of the equation.

2x + 2y + -2y = 13 + -2y

5) Combine like terms: 2y + -2y = 0

2x + 0 = 13 + -2y

2x = 13 + -2y

6) Divide each side by '2'.

x = 6.5 + -1y

7) Simplifying

x = 6.5 + -1y

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5/6 divided by 2 = 10/6 = 5/3(improper fraction) = 1 (2/3) (mixed fraction)

1/5 is already in it's simplest form
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Step-by-step explanation:

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Select all the expressions that all have the following quotient 2m+3
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Step-by-step explanation:

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6 0
3 years ago
A theater group made appearances in two cities. The hotel charge before tax in the second city was $1000 lower than in the first
ludmilkaskok [199]

Answer:

The hotel charge in city one before tax is $3750 and the hotel charge in city two before tax is $2250.

tep-by-step explanation:

Let a = the charge in 1st city before taxes

Let b= the charge in 2nd city before taxes

 

Based on the information given . We can have the following equation (1).

 

y = x - 1500  ......(1).

 

Interms of the information given , the following is formulated based on taxed paid .

 

0.065x + 0.06y = 378.75  .....(2).

Now we substitute equation (1) into (2).

 

0.065x + 0.06(x - 1500) = 378.75

0.065x + 0.06x - 90 = 378.75

0.125x - 90 = 378.75

0.125x = 468.75

        Therefor x=3750

Now x value into equation (1)

 

y = 3750 - 1500

y = 2250

 

 

The hotel charge in city one before tax is $3750 and the hotel charge in city two before tax is $2250.

 

8 0
3 years ago
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